John McEwen (disambiguation)
John McEwen was the 18th Prime Minister of Australia.
John McEwen may also refer to:
- John McEwen (athlete) (born 1974), American hammer thrower
 - John A. McEwen (1824–1858), mayor of Nashville, Tennessee
 - John Blackwood McEwen (1868–1948), Scottish classical composer
 - John L. McEwen (1928–2010), American politician
 - Sir John McEwen, 1st Baronet (1894–1962), Scottish politician
 - John McEwen (cricketer) (1862–1902), English cricketer